Rotations are everywhere. The Earth rotates around the sun, and a second hand rotates around a clock. In this topic, you will explore how images rotate in the coordinate plane. In addition, you will learn how to determine the point around which an image rotates and how far the image rotates. Your knowledge of circles and angles will come in handy as you progress through this topic.

Essential Questions

• How do you rotate a figure?
• What is the difference between the pre-image and the rotated image of a figure?

 

Warm-Up

Consider how the hands of a clock rotate 360 degrees in order to mark the time throughout a day. In this non-graded interactivity, you will use an image of an analog clock to answer questions and test your skills in understanding rotation. Click the player button to get started.